The temperature falls from 0 degrees to - 124 degrees in 3 hours. Which expression finds the change in temperature per hour? 7 49 O 2*4 7 49 0 2x 49 7 x 49 7 4*2
To find the expression, first convert the mixed numbers to improper fractions. -12 1/4=-49/4 & 3½=7/2. Hence, we get the expression -49/4÷7/2, which is the answer.
